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双折射材料的温度修正 Birefringent Material Temperature Modification TC<_I0jCh |/Ggsfmby 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: "/S-+Ufn /Pxt f~$ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline KWLI7fTgj$ HKP<=<8/O 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline }~:`9PV)Z% MIsjTKE 3.Loop over the baseline material samples and determine the number of wavelength entries BB.^-0up ^Cst4=:W 4.Loop over each sampled wavelength entry in the baseline material .Qyq*6T3& V) a<) a.Modify the ordinary and extraordinary refractive index values using (2) above p[!&D}&6h jav7V"$ b.Apply the modified values to the non-baseline material 0/6f9A h
rW 5.Set a description on the non-baseline material indicating the temperature change from baseline ,gVA^]eDh 9G[!"eZ} 脚本编程及GUI例程请下载链接: >OgA3)X D. fPHq http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs +4Aj/$%[q Kyq/'9` http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 'P0:1"> bg'Qq|<U 3,8<5)ds* QQ:2987619807 *?zmo@-
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